An all-encompassing mocking term that can be utilized as either: 1) incredulity about something, or 2) to completely blow-off another person.
Person 1: "I just won the Lotto!"
Person 2: "Yeahrightsure."
Typical Female: "I told you to take out the trash."
Not quite witless and not exactly a half-wit, either. It is someone who is extremely stupid or an individual possessing the intellectual or verbal skills of a bag of frozen shrimp.
Boy, that stuttering and stammering Harvard fop is an unadulterated nanowit for thinking there are 57 states in the union.
Any 21st century leftist, Marxist, Leninist, Stalinist, Trotskyite, Maoist, Castroite, Alinkskyite, "useful idiot", communist, socialist, anarchist, Democrat (American), Green Party sheep, corrupt labor union member, Nazi, environmentalist, anti-American, vociferous homosexual, radical, anti-war activist, pro-choice advocate or anti-Semitic revolutionary who would go out of their way to save tree saplings, incarcerated criminals, pedophiles, cop killers or 6th century-minded Muslim terrorists (as opposed to free market capitalism, liberty, defenseless babies in the womb, religious freedoms, truth, justice and American Exceptionalism).
I couldn't get to work today because indolent limp-wristed liberal progressives were tying up all of the major intersections protesting the wanton slaughter of the Comal Springs Dryopid Beetle.